Eikonal quasinormal modes and shadow of string-corrected d-dimensional black holes

Detalhes bibliográficos
Autor(a) principal: Moura, F.
Data de Publicação: 2021
Outros Autores: Rodrigues, J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10071/22675
Resumo: We compute the quasinormal frequencies of d-dimensional spherically symmetric black holes with leading string corrections in the eikonal limit for tensorial gravitational perturbations and scalar test fields. We find that, differently than in Einstein gravity, the real parts of the frequency are no longer equal for these two cases. The corresponding imaginary parts remain equal to the principal Lyapunov exponent corresponding to circular null geodesics, to first order in . We also compute the radius of the shadow cast by these black holes.
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spelling Eikonal quasinormal modes and shadow of string-corrected d-dimensional black holesWe compute the quasinormal frequencies of d-dimensional spherically symmetric black holes with leading string corrections in the eikonal limit for tensorial gravitational perturbations and scalar test fields. We find that, differently than in Einstein gravity, the real parts of the frequency are no longer equal for these two cases. The corresponding imaginary parts remain equal to the principal Lyapunov exponent corresponding to circular null geodesics, to first order in . We also compute the radius of the shadow cast by these black holes.Elsevier2021-06-07T13:33:04Z2021-01-01T00:00:00Z20212021-06-07T14:31:44Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10071/22675eng0370-269310.1016/j.physletb.2021.136407Moura, F.Rodrigues, J.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T18:00:08Zoai:repositorio.iscte-iul.pt:10071/22675Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:31:48.460174Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Eikonal quasinormal modes and shadow of string-corrected d-dimensional black holes
title Eikonal quasinormal modes and shadow of string-corrected d-dimensional black holes
spellingShingle Eikonal quasinormal modes and shadow of string-corrected d-dimensional black holes
Moura, F.
title_short Eikonal quasinormal modes and shadow of string-corrected d-dimensional black holes
title_full Eikonal quasinormal modes and shadow of string-corrected d-dimensional black holes
title_fullStr Eikonal quasinormal modes and shadow of string-corrected d-dimensional black holes
title_full_unstemmed Eikonal quasinormal modes and shadow of string-corrected d-dimensional black holes
title_sort Eikonal quasinormal modes and shadow of string-corrected d-dimensional black holes
author Moura, F.
author_facet Moura, F.
Rodrigues, J.
author_role author
author2 Rodrigues, J.
author2_role author
dc.contributor.author.fl_str_mv Moura, F.
Rodrigues, J.
description We compute the quasinormal frequencies of d-dimensional spherically symmetric black holes with leading string corrections in the eikonal limit for tensorial gravitational perturbations and scalar test fields. We find that, differently than in Einstein gravity, the real parts of the frequency are no longer equal for these two cases. The corresponding imaginary parts remain equal to the principal Lyapunov exponent corresponding to circular null geodesics, to first order in . We also compute the radius of the shadow cast by these black holes.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-07T13:33:04Z
2021-01-01T00:00:00Z
2021
2021-06-07T14:31:44Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10071/22675
url http://hdl.handle.net/10071/22675
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0370-2693
10.1016/j.physletb.2021.136407
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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